ASTM International - ASTM D3284-05(2019)

Standard Practice for Combustible Gases in the Gas Space of Electrical Apparatus Using Portable Meters

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Organization: ASTM International
Publication Date: 1 December 2019
Status: active
Page Count: 3
ICS Code (Alarm and warning systems): 13.320
significance And Use:

4.1 Arcing, partial discharge, and localized overheating in the insulation system of transformers result in chemical decomposition of the insulating oil and other insulating materials. This may... View More

scope:

1.1 This field practice covers the detection and estimation of combustible gases in the gas blanket above the oil or in gas detector relays in transformers using portable instruments. It is applicable only with transformers using mineral oil as the dielectric fluid. Gases dissolved in the oil and noncombustible gases are not determined. A method of calibrating the instruments with a known gas mixture is included.

1.2 This practice affords a semi-quantitative estimate of the total combustible gases present in a gas mixture. If a more accurate determination of the total amount of combustible gases or a quantitative determination of the individual components is desired, use a laboratory analytical method, such as Test Method D3612.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 7.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Document History

ASTM D3284-05(2019)
December 1, 2019
Standard Practice for Combustible Gases in the Gas Space of Electrical Apparatus Using Portable Meters
1.1 This field practice covers the detection and estimation of combustible gases in the gas blanket above the oil or in gas detector relays in transformers using portable instruments. It is...
May 1, 2011
Standard Practice for Combustible Gases in the Gas Space of Electrical Apparatus Using Portable Meters
Arcing, partial discharge, and localized overheating in the insulation system of transformers result in chemical decomposition of the insulating oil and other insulating materials. This may generate...
May 1, 2005
Standard Practice for Combustible Gases in the Gas Space of Electrical Apparatus Using Portable Meters
Arcing, partial discharge, and localized overheating in the insulation system of transformers result in chemical decomposition of the insulating oil and other insulating materials. This may generate...
April 10, 1999
Standard Test Method for Combustible Gases in the Gas Space of Electrical Apparatus Using Portable Meters
1.1 This test method covers the detection and estimation of combustible gases in the gas blanket above the oil or in gas detector relays in transformers using portable field instruments. It is...
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